byCHEM Study, College of Chemistry and Lawrence Hall of Science, U.C. Berkeley
Observations are made of electric effects, including deflections of streams of liquids by a charged rod, and changes in charging time of a capacitor. There is evidence that different molecules give two types of results: some give very marked interactions with electric charges, while others give little effect. To explain these different results, a conceptual model is developed based on two types of molecules: polar and non-polar. Consideration of bond polarity and molecular shape allows... Topics: CHEM Study, chemical education, science education, Sputnik-era curriculum, polar molecules,...